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:(-NQ Model.) 2 sheets-sheet 1. A A C.H. PHELPS ,n `/LAGHINB P03 CUTTINGDISKS FROM WOOD.

No. 381,947'. n Patented May 1, 18:88,

(No M0881.) 2 shgetssheef '2'.

o. PELPS.- MACHINE POR'GUTTINGDISKS PROM lWOOD'. No. 881,947;- y128881188818857 1,1888.

,UNITED STATES PATENT OEEICEo CHARLES H. PHELPS, OF CHICAGO, ILLINOIS,ASSIGNOR TO GIBSON, PARISH & COMPANY, OF SAME PLACE. j

MACHINE FOR CUTTING DISKS FROM WOOD.

SPECIFICATION forming part of Letters Patent No. 381.947. dated May 1,1888.

Application filed February 23, 1888. Serial No. 264,978. (No model.)

To @ZZ whom t may concern:

Y*Be it known that I, CHARLEs H. PHELPs, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and Improved Machine for Cutting Disks from Woodfor Can-Heads, dsc., which I desire to protect by Letters Patent oftheUnited States, of which the following is a specification.

My invention relates to mechanism for automatically feeding the boardsin cutting wooden disks to a concave saw. Heretofore the operation ofcutting disks from wood has been a slow one, involving manipulation ofthe boards in the operation of feeding. With my mechanism I securerapidity as well as accuracy of work.

In the accompanying drawings, making part of this specification, FiguresI and 2 are perspective. In the former the mechanism is shown as whenlnot employed. In the latter the position of the adjustable mechanism isshown as in operation and with aboard or blank grasped therein and iucontact with the saw. f

A suitable supporting structure, as A, for example, is profvided, uponwhich is rotatably mounted a shaft, B, having at one end a pulley, B,through which to receive motion, and at the opposite end a concave saw,D, the shaft occupying a horizontal position and the saw rotating in avertical plane with its teeth directed at an angle thereto. Fromapul1ey,C, on shaft B power is transmitted through a pulley, C, toashaft, E, beneath shaft B. On one end of shaft E, corresponding indirection to the position of saw D, is provided a beveled friction-gear,F.

A frame, which as a whole is designated H, is provided as a basis forthe adjustable mechanism, and consists of parallel rods a a, that areproperly separated from each other, a journal-bearing, a', securedbetween the horizontally-terminating upper ends of the rods, and ajoint, a, connecting the lower endsy of said rods. This frame structure,for convenience and economy in the matter of construction, is formedofpipe connected at the bends by pipecouplings. Rods a c are held in aninclined position by guide-pieces b and b', attached tothe supportingstructure, in which apertures are provided as bearings for said rods,wherebylongitudinal movement of the latter is permitted. Centrally ofand parallel to rods a a is a shaft, d, having longitudinal movable androtatable bearings in apertures in the cross-pieces b and b. Onthe'upper end of this shaft is mounted the lower of two annular plates,e' and e. Shaft d, between the two cross-pieces, is provided with acollar, t', and surrounding said shaft,with its upper end bearingagainst said collar and its lower end bearing on cross-piece b, is aspiral spring that serves to keep the shaft normally raised. A frontshaft, d', is journaled in bearing a', and prevented from longitudinalmovement therein by a collar, or by any desirable means. Surroundingrods a and a above and resting on cross-piece b are spiral springs g g,the upper ends of which bear against the shoulders of said rods andserve as flexible supports to give the frame and shaft d', with the diske', a normally raised position. On shaft d, beneath cross-piece b, is afriction bevel-wheel, lc.

A treadle-rod, J, pivotally connected at J and provided with afoot-plate, j, is attached to the lower end of frame H, by which the latter may be depressed. The normal position of plate e' is sufficientlyabove plate e to permit the insertion of the piece blank or board to beoperated upon. Depression of the frame by means of the treadlecompresses springs g g and brings plate e down to clamp the board orblank, and upon further depression of the frame spring h yields,permitting the descent of the frame and shaft d until, as shown in Fig.2, the bevel-gear 7c is brought in contact with bevel-gear F, coincidentwith which the board is brought into contact with the saw. This contactof the beveled gear serves to rotate shaft d, andthe friction of theblank, which is provided for by spurs on the inner faces of plates e andc', if necessary, transmits the movement to the upper shaft, d', theblank being thus rotated and a circle of its area thus presentedprogressively to the saw. By releasing the treadle the frame and shaft,with the plates, are again elevated by the action of the springs.

The plate e', being lifted a distance somewhat greater than the lowerplate, releases thewooden piece. The radius of a circle cutis determined by the inclination of the teeth to the axis of the saw, and uponthis inclination is also dependent the angle at which the blank shouldbe presented to the saw to produce a true disk, and dueto this avariation of the shaft d from a line parallel to the linejoining the sawand pulley may be necessitated.

My invention is not limited in scope to the details of Construction, butembraces the general plan or adaptation of a movable inclined frame thatmay be brought to engage the blank with the saw simultaneously withcontact of the gear and mechanism for producing such Contact and springsfor effecti n g a reverse movement.

yHaving thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a machine for cutting disks from Wood, the combination, with arotatable shaft carryiu g a concave saw, and a second rotatable shaftcarrying a bevel-gear, the position of the saw and bevel-gear withrelation to each other being such thata linejoining them Will form anacute angle with the shaft carrying the saw, of a 10- tatable andlongitudinally-movable shaft parallel to said line and opposite the endsof the shafts, actuated in one direction by springpressure and providedWith a clamp-plate and beveled gear, a frame longitudinally movable(3o-operating by aspring-pressure with the said shaft and carrying ashaft in line with the firstnamed longitudinally-movable shaft, providedwith a clamp-plate contiguous to and coacting with the clamp-plate ofthe other shaft, said frame and shaft having mechanism provided forforcing them in opposition to the spring action, substantially as setforth.

2. In a machine for cutting Wooden disks, the combination, with the sawD and the gear F, rotatably mounted on separate shafts and occupyingpositions with relation toeach other, substantiall y as described, oftheframe I-I, shaft d Within said frame, having thereon gear 7c andclamp-plate e, a shaft, d', supported in the frame in alignment withshaft d and having provided at its end the clamp-plate e', springs foractuating the frame and shaft in one direction, and a treadle, Jj, foroperating the frame and shaft in opposition to the spring.

3. In a disk-cutting machine, the combination of shaft B, concave saw D,shaft E, beveled gear F, inclined frame H, shafts d and d, clamp-platese and e', respectively, on said shafts, beveled gear k on shaft d,springs g g and 7i, and treadle J, substantially as set forth.

CHARLES H. PHELPS.

Vvfitnesses:

FREDERICK C. GOODWIN, R. S. WEBSTER.

